CN102918789B

CN102918789B - The equipment decoded for the Physical Broadcast Channel (PBCH) of many cellular cells and method

Info

Publication number: CN102918789B
Application number: CN201180026502.6A
Authority: CN
Inventors: T·罗; K·刘; K·巴塔德; T·刘; X·张
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2010-05-28
Filing date: 2011-05-27
Publication date: 2016-06-22
Anticipated expiration: 2031-05-27
Also published as: KR101670405B1; WO2011150382A1; EP2675087A2; EP2577896A1; KR101524147B1; JP2013534077A; EP2675087A3; KR20150013939A; JP5649250B2; US8582505B2; KR20130040951A; US20110292875A1; CN102918789A

Abstract

A kind of method for wireless communications includes generating the cellular cell list (610) that Physical Broadcast Channel (PBCH) decodes。The method also includes for decoding and eliminates cellular cell subset allocation memorizer (612) from the cellular cell list generated。The information relevant to the cellular cell subset from the list generated is stored in the memorizer distributed (614) during being additionally included in the different time periods by the method。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。The method also includes traveling through, by each subset of process cellular cell list during the different time periods, the cellular cell list generated。

Description

The equipment decoded for the Physical Broadcast Channel (PBCH) of many cellular cells and method

The cross reference of related application

The application according to 35U.S.C. § 119 (e) require on May 28th, 2010 submit to be entitled as " ApparatusandmethodforPBCHdecoding(for PBCH decoding equipment and method) " U.S. Provisional Patent Application No.61/349, the rights and interests of 647, the disclosure of which is all clearly included in this by quoting。

Field

The each side of the disclosure relates generally to wireless communication system, particularly relates to decoding Physical Broadcast Channel (PBCH)。

Background

Cordless communication network is widely deployed to provide the various communication services such as such as voice, video, grouped data, information receiving, broadcast。These wireless networks can be able to by share can Internet resources support the multi-access network of multiple user。The example of this kind of multi-access network includes CDMA (CDMA) network, time division multiple acess (TDMA) network, frequency division multiple access (FDMA) network, orthogonal FDMA(OFDMA) network and Single Carrier Frequency Division Multiple Access (SC-FDMA) network。

Cordless communication network can include supporting several base stations that several subscriber's installation (UE) communicates。UE can communicate with base station with up-link via downlink。Downlink (or being forward link) refers to the communication link from base station to UE, and up-link (or being reverse link) refers to the communication link from UE to base station。

Base station can be transmitted data and the information of control to UE on the uplink and/or can receive data and the information of control on uplink from UE。On the uplink, it is likely to meet with due to from adjacent base station or the interference that causes from the transmission of other less radio-frequencies (RF) transmitter from the transmission of base station。On uplink, it is likely to meet with the interference of ul transmissions from other UE communicated with adjacent base station or other wireless RF transmitter from the transmission of UE。This interference is likely to make the performance degradation in downlink and up-link。

Due to the demand sustainable growth that mobile broadband accesses, accessing long-range wireless communication network along with more UE and more short-range wireless systems is just being deployed in community, the probability of interference and congested network constantly increases。

General introduction

One side according to the disclosure, a kind of wireless communications method includes the list generating the cellular cell that Physical Broadcast Channel (PBCH) decodes。The method also includes for decoding and eliminates the cellular cell subset allocation memorizer from the cellular cell list generated。The information relevant to the cellular cell subset from the list generated is stored in the memorizer distributed during being additionally included in the different time periods by the method。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。The method also includes carrying out, by each subset of process cellular cell list during the different time periods, the cellular cell list that searching loop generates。

On the other hand, a kind of wireless communications method includes receiving the new burst that Physical Broadcast Channel (PBCH) is sampled。The method also includes the PBCH eliminating the cellular cell of each early decoding from new burst。The method attempts PBCH decoding based on this new burst after being additionally included in cancellation。The method also includes eliminating, from new burst and previously stored burst, the cellular cell being successfully decoded。The method includes again storing corresponding to receiving sampling for further process through cancellation PBCH of PBCH burst subset。

Another aspect, a kind of radio communication device includes memorizer and coupled at least one processor of this memorizer。Processor is configured to generate the cellular cell list that Physical Broadcast Channel (PBCH) decodes。Processor is configured to as decoding and eliminates the cellular cell subset allocation memorizer from the cellular cell list generated。Processor is configured to during the different time periods information relevant to the cellular cell subset from the list generated to be stored in the memorizer distributed。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。Processor is configured to carry out, by each subset of process cellular cell list during the different time periods, the cellular cell list that searching loop generates。

Another aspect, a kind of radio communication device includes memorizer and coupled at least one processor of this memorizer。Processor is configured to receive the new burst that Physical Broadcast Channel (PBCH) is sampled。Processor is configured to eliminate the PBCH of the cellular cell of each early decoding from new burst。Processor is configured to after eliminating and attempts PBCH decoding based on this new burst。Processor is configured to include eliminating, from new burst and previously stored burst, the cellular cell being successfully decoded。Processor is configured to store corresponding to receiving sampling for further process through cancellation PBCH of PBCH burst subset。

On the other hand, a kind of computer program for the radio communication in wireless network includes the non-transient computer-readable medium with program code recorded thereon。Program code includes the program code for generating the cellular cell list that Physical Broadcast Channel (PBCH) decodes。Program code also includes for the program code for decoding and eliminate the cellular cell subset allocation memorizer from the cellular cell list generated。Program code also includes the program code for the information relevant to the cellular cell subset from the list generated being stored in the memorizer distributed during the different time periods。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。Program code also includes the program code for carrying out the cellular cell list that searching loop generates by processing each subset of cellular cell list during the different time periods。

Another aspect, a kind of computer program for the radio communication in radio physical includes the non-transient computer-readable medium with program code recorded thereon。Program code includes the program code for receiving the new burst that Physical Broadcast Channel (PBCH) is sampled。Program code also includes the program code of the PBCH of the cellular cell for eliminating each early decoding from new burst。Program code also includes the program code for attempting PBCH decoding after eliminating based on this new burst。Program code also includes the program code for eliminating the cellular cell being successfully decoded from new burst and previously stored burst。Program code also include for store corresponding to receive PBCH burst subset through eliminating the PBCH sampling program code for processing further。

On the other hand, a kind of Wireless Telecom Equipment includes the device for generating the cellular cell list that Physical Broadcast Channel (PBCH) decodes。This equipment also includes for the device for decoding and eliminate the cellular cell subset allocation memorizer from the cellular cell list generated。This equipment also includes the device for the information relevant to the cellular cell subset from the list generated being stored in the memorizer distributed during the different time periods。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。This equipment also includes the device for carrying out the cellular cell list that searching loop generates by processing each subset of cellular cell list during the different time periods。

Another aspect, a kind of Wireless Telecom Equipment includes the device for receiving the new burst that Physical Broadcast Channel (PBCH) is sampled。This equipment also includes the device of the PBCH of the cellular cell for eliminating each early decoding from new burst。This equipment also includes the device for attempting PBCH decoding after eliminating based on new burst。This equipment also includes the device for eliminating the cellular cell being successfully decoded from new burst and previously stored burst。This equipment also include for store corresponding to receive PBCH burst subset through eliminating the PBCH sampling device for processing further。

This feature sketching the contours of the disclosure and technical advantage to try hard to make detailed description below to be better understood broadly。Other feature and advantage of the disclosure will describe thereafter。Those skilled in the art is it should be appreciated that the disclosure can be easily used as changing or being designed to carry out the basis of other structures of the purpose identical with the disclosure。Those skilled in the art it will also be appreciated that the instruction without departing from the disclosure set forth in claims of such equivalent constructions。It is considered as that the novel feature of the characteristic of the disclosure will be better understood when when being considered in conjunction with the accompanying being described below together with further purpose and advantage in its tissue and operational approach two。But it is to be expressly understood that provide each width accompanying drawing all only to mediate a settlement description purpose for solution, and it is not intended as the definition of restriction of this disclosure。

Brief Description Of Drawings

Described below when illustrating understanding in conjunction with accompanying drawing, inventive feature, nature and advantages will be apparent from, and in the accompanying drawings, same reference numerals makes respective identification all the time。

Fig. 1 is the block diagram of the example explaining orally telecommunication system conceptually。

Fig. 2 is the schematic diagram of the example explaining orally the downlink frame structure in telecommunication system conceptually。

Fig. 3 is the block diagram of the example of the frame structure explaining orally uplink communication conceptually。

Fig. 4 is the block diagram of the design explaining orally base station/eNodeB and the UE according to an aspect of this disclosure configuration conceptually。

Fig. 5 A-5B explains orally the analysis to being used for decoding the cellular cell subset of PBCH of each side according to the disclosure。

Fig. 6 A-6B is that the explanation each side according to the disclosure is for decoding the block diagram of the method for the PBCH of multiple cellular cell。

Fig. 7 and 8 are that the explanation each side according to the disclosure is for decoding the block diagram of the assembly of the PBCH of multiple cellular cell。

Specifically describe

The detailed description set forth below in conjunction with accompanying drawing is intended to the description as various configurations, and is not intended to represent the only configuration that can put into practice concept described herein。This detailed description includes detail to provide the thorough understanding to each conception of species。It will be evident to one skilled in the art, however, that do not have these details can put into practice these concepts yet。In some instances, well-known structure and assembly are shown in form of a block diagram to avoid falling into oblivion this genus。

All technology described herein can be used for various cordless communication network, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks。Term " network " and " system " are often used interchangeably。Cdma network can realize the radiotechnics of the such as universal terrestrial radio CDMA2000 being electrically accessed (UTRA), Telecommunications Industries Association (TIA) etc。UTRA technology includes wideband CDMA (WCDMA) and other CDMA variants。CDMA2000 technology includes IS-2000, IS-95 and IS-856 standard from Electronics Industry Alliance (EIA) and TIA。TDMA network can realize the radiotechnics of such as global system for mobile communications (GSM) etc。OFDMA network can realize such as evolution UTRA(E-UTRA), Ultra-Mobile Broadband (UMB), IEEE802.11(Wi-Fi), IEEE802.16(WiMAX), the radiotechnics of IEEE802.20, Flash-OFDM etc。UTRA and E-UTRA technology is the part of Universal Mobile Telecommunications System (UMTS)。3GPP Long Term Evolution (LTE) and senior LTE(LTE-A) it is the newer UMTS release using E-UTRA。UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in the document of the tissue from " third generation partnership projects " (3GPP) by name。CDMA2000 and UMB is described in the document of the tissue from " third generation partnership projects 2 " (3GPP2) by name。Various technology described in text can be used for wireless network mentioned above and radio access technologies and other wireless networks and radio access technologies。For the sake of clarity, below for LTE or LTE-A(in alternative collectively referred to as " LTE/-A ") describe these technology some in, and in significant portion described below use LTE/-A term。

Fig. 1 shows cordless communication network 100, and it can be LTE-A network, a kind of method wherein achieving PBCH for decoding from multiple cellular cells。Wireless network 100 includes several evolution B node (eNodeB) 110 and other network entities。ENodeB can be the station communicated with UE and be alternatively called base station, B node, access point etc.。Each eNodeB110 can provide communication overlay for specific geographical area。In 3 gpp, term " cellular cell " depends on using the context of this term can refer to this specific geographic area of coverage of eNodeB and/or service the eNodeB subsystem of this area of coverage。

ENodeB can provide the communication overlay to macro cells, pico cells, femtocell community and/or other kinds of cellular cell。Macro cells generally covers relatively large geographic area (such as, radius is the region of thousands of meters), and can allow to be accessed by the UE of the service subscription with Network Provider without restrictions。Pico cells generally covers relatively small geographic area and can allow to be accessed by the UE of the service subscription with Network Provider without restrictions。Femtocell community also generally covers relatively small geographic area (such as, family) and can be provided with constraint by with the related UE(in this femtocell community such as except unconfined access, the UE in closed subscriber group (CSG), the user in this family UE, and the like) access。The eNodeB of macro cells is referred to alternatively as grand eNodeB。The eNodeB of pico cells is referred to alternatively as slight eNodeB。The eNodeB of femtocell community is referred to alternatively as femto eNodeB or domestic eNodeB。In the example depicted in fig. 1, eNodeB110a, 110b and 110c are the grand eNodeB of macro cells 102a, 102b and 102c respectively。ENodeB110x be pico cells 102x slight eNodeB. and, eNodeBs110y and 110z is the femto eNodeB of femtocell community 102y and 102z respectively。ENodeB can support one or more (such as, two, three, four, etc.) cellular cell。

Wireless network 100 may also include relay station。Relay station is to receive the transmission of data and/or other information from upstream station (such as, eNodeB, UE, etc.) and downstream stand (such as, UE or eNodeB etc.) sends the station of transmission of these data and/or other information。Relay station can also is that the UE into other UE relay transmission。In example shown in FIG, relay station 110r can communicate the communication facilitated between eNodeB110a and UE120r with eNodeB110a and UE120r。Relay station is alternatively called relaying eNodeB, relaying etc.。

Wireless network 100 can be the heterogeneous network including the dissimilar eNodeB such as such as grand eNodeB, slight eNodeB, femto eNodeB, relaying。These different types of eNodeB can have different transmission power level, distinct coverage region, and the interference in wireless network 100 is had Different Effects。Such as, grand eNodeB can have high emission power level (such as, 20 watts), and eNodeB, femto eNodeB and relaying can have relatively low transmitted power level (such as, 1 watt) slightly。On the one hand, wireless network 100 supports synchronous communication, and wherein each eNodeB can have close frame timing and the transmission from different eNodeB that in time can be substantially aligned。

In one aspect, wireless network 100 can support FDD (FDD) or time division duplex (TDD) operator scheme。Techniques described herein can be used for FDD or TDD operator scheme。

Network controller 130 can coupled to one group of eNodeB110 and provide the coordination to these eNodeB110 and control。Network controller 130 can communicate with each eNodeB110 via backhaul。These eNodeB110 can also (such as, via wireless backhaul or wire-line back haul directly or indirectly) communicate with one another。

UE120(such as, UE120X, UE120y etc.) dispersion is throughout wireless network 100, and each UE stays fixed or movement。UE is also referred to as terminal, movement station, subscri er unit, stands, etc.。UE can be cell phone/radio telephone (such as, smart phone), PDA(Personal Digital Assistant), radio modem, Wireless Telecom Equipment, portable equipment, laptop computer, wireless phone, WLL (WLL) stand, panel computer, net book, smartbook, etc.。UE can communicate with grand eNodeB, slight eNodeB, femto eNodeB, relaying etc.。In FIG, having the expectation transmission between the solid line instruction UE of double-head arrow and service eNodeB, service eNodeB is the eNodeB being designated and servicing this UE on the downlink and/or uplink。There is the interference transmission between dotted line instruction UE and the eNodeB of double-head arrow。

LTE utilizes OFDM (OFDM) on the uplink and utilizes single carrier frequency division multiplexing (SC-FDM) on uplink。System bandwidth is divided into multiple (K) quadrature subcarrier by OFDM and SC-FDM, and it is generally also referred to as frequency modulation, frequency groove etc.。Each subcarrier data available is modulated。It is said that in general, modulated symbol sends in a frequency domain under OFDM, and send in the time domain under SC-FDM。Spacing between adjacent subcarriers can be fixing, and the sum of subcarrier (K) can be depending on system bandwidth。Such as, the spacing of subcarrier can be 15kHz, and minimum resource allocation (being called " Resource Block ") can be 12 subcarriers (or 180kHz)。Therefore, for the corresponding system bandwidth of 1.25,2.5,5,10 or 20 megahertzs (MHz), nominal FFT size can be respectively equal to 128,256,512,1024 or 2048。System bandwidth also can be divided into subband。Such as, namely subband can cover 1.08MHz(, 6 Resource Block), and for the corresponding system bandwidth of 1.25,2.5,5,10 or 20MHz, can have 1,2,4,8 or 16 subbands respectively。

Fig. 2 illustrates the downlink FDD frame structure used in LTE, including the PBCH to be decoded。Transmission timeline for downlink can be divided in units of radio frame。Each radio frame can have predetermined lasting (such as 10 milliseconds (ms)), and is divided into 10 subframes with index 0 to 9。Each subframe can include two time slots。Therefore each radio frame can include having 20 time slots indexing 0 to 19。Each time slot can include L code-element period, for instance, it is 7 code-element periods (as shown in Figure 2) for normal cyclic prefix, or is 6 code-element periods for extended cyclic prefix。2L code-element period in each subframe can be assigned index 0 to 2L-1。Available running time-frequency resource can be divided into Resource Block。Each Resource Block can cover the N number of subcarrier (such as, 12 subcarriers) in a time slot。

In LTE, evolved B node can be that each cellular cell in this evolved B node sends master sync signal (PSS) and secondary synchronizing signal (SSS)。For FDD operator scheme, these secondary synchronizing signals of advocating peace can be sent respectively in having the subframe 0 and 5 of each radio frame of normal cyclic prefix in code-element period 6 and 5, as shown in Figure 2。These synchronizing signals and can be caught for cellular cell detection by UE。For FDD operator scheme, eNodeB can send Physical Broadcast Channel (PBCH) in the code-element period 0 to 3 in the time slot 1 of subframe 0。PBCH portability some system information such as system banner and Access Control parameter to UE and can send at 40ms interval。In each 40ms cycle, using four redundancy version originally to transmit PBCH payload, wherein every 10ms transmits a redundancy versions。The payload of these four redundancy versions in the 40ms cycle is identical, but the payload across the 40ms cycle is change。

ENodeB can send physical control format indicator channel (PCFICH) in the first of each subframe code-element period, as shown in Figure 2。PCFICH can pass on the number (M) of the code-element period for controlling channel, and wherein M can be equal to 1,2 or 3 and can change by subframe。For mini system bandwidth (such as, have less than 10 Resource Block), M also can be equal to 4。In example shown in fig. 2, M=3。ENodeB can transmit physics HARQ indicator channel (PHICH) and physical downlink control channel (PDCCH) in M code-element period of head of each subframe。In the illustrated example shown in fig. 2, PDCCH and PHICH is also included in 3 code-element periods。PHICH portability is used for supporting the information of mixed automatic retransfer (HARQ)。PDCCH portability is about to the up-link of UE and the information of downlink resource allocations and for the power control information of uplink channel。Evolved B node can send physical down link sharing channel (PDSCH) in all the other code-element periods of each subframe。PDSCH portability gives the data being scheduled to the UE carried out data transmission on the uplink。

ENodeB can send PSC, SSC and PBCH in the central 1.08MHz of this eNodeB system bandwidth used。Evolved B node can send these channels across whole system bandwidth in each code-element period sending PCFICH and PHICH。Evolved B node can send PDCCH in some part of system bandwidth to each group of UE。ENodeB can send PDSCH at the specific part of system bandwidth to each group of UE。ENodeB can send PSC, SSC, PBCH, PCFICH and PHICH to all of UE by broadcast mode, sends PDCCH to particular UE, it is also possible to mode of unicast sends PDSCH to particular UE in the way of clean culture。

Each code-element period can there is several resource element can use。Each resource element can cover a subcarrier in a code-element period, and can be used for sending a modulated symbol, and this modulated symbol can be real number value or complex values。For being used for controlling the code element of channel, in each code-element period, the resource element of signal unused for reference can be arranged in each resource element group (REG)。Each REG can include four resource elements in a code-element period。PCFICH can take four REG in code-element period 0, and these four REG can be similar to across frequency and separate equably。Three REG, these three REG that PHICH can take in one or more configurable code-element period can across frequency distribution。Such as, the these three REG for PHICH can broadly fall into code-element period 0, or can be distributed in code-element period 0,1 and 2。9,18,36 or 72 REG, these REG that PDCCH can take in a M code-element period can select from available REG。Only some REG combination can be permitted for PDCCH。

UE would know that the specific REG for PHICH and PCFICH。UE can search for combining for the different REG of PDCCH。What the number of the combination searched for was generally less than in PDCCH all UE is allowed for the number of combination。Evolved B node can will send PDCCH to UE in any combination of search at UE。

UE is likely located in the covering of multiple evolved B node。One of these evolved B node optional service this UE。Can select to service evolved B node based on various criterions such as such as receiving power, path loss, signal to noise ratio (snr)。

Fig. 3 explains orally exemplary FDD and the TDD(only non-dedicated subframe in up-link Long Term Evolution (LTE) communication according to the disclosure conceptually) block diagram of subframe structure。Available resource block (RB) for up-link is divided into data segments and controls section。Control section may be formed at the Liang Ge edge of system bandwidth and can have configurable size。The Resource Block controlled in section can be assigned to UE to transmit control information。Data segments can include all being not included in and control the Resource Block in section。Design in Fig. 3 causes that data segments includes contiguous subcarriers, and this can allow single UE to be assigned all contiguous subcarriers in data segments。

UE can be assigned the Resource Block controlled in section to transmit control information to eNodeB。UE also can be assigned the Resource Block in data segments to transmit data to eNodeB。UE can on the assigned Resource Block controlled in section Uplink Control Channel (PUCCH) middle transmission control information physically。UE can only transmit data in ink Shared Channel (PUSCH) physically on the assigned Resource Block in data segments or transmits data and control both information。Ul transmissions may span across subframe two time slots and can across frequency agility, as shown in Figure 3。According to an aspect, in loose single-carrier operation, can at the parallel channel of UL transmitted over resources。Such as, UE can transmit control and data channel, parallel control channel, and parallel data channel。

PSC, SSC, CRS, PBCH, PUCCH, PUSCH of using in LTE/-A and other such signals and channel are entitled as " EvolvedUniversalTerrestrialRadioAccess (E-UTRA) the public is retrievable;PhysicalChannelsandModulation(Evolved Universal Terrestrial radio accesses (E-UTRA)；Physical channel and modulation) " 3GPPTS36.211 in be described。

Fig. 4 illustrates the block diagram of the design of base station/eNodeB110 and UE120, a kind of method that wherein can realize PBCH for decoding from multiple cellular cells。ENodeB110 and UE120 can be the base station/eNobeB in Fig. 1 one of them and UE one of them。Base station 110 can be the grand eNodeB110c in Fig. 1, and UE120 can be UE120y。Base station 110 can also be some other type of base station。Base station 110 has been equipped with antenna 434a to 434t, and UE120 has been equipped with antenna 452a to 452r。

At base station 110 place, launch processor 420 and can receive the data from data source 412 and the control information carrying out self-controller/processor 440。This control information could be for PBCH, PCFICH, PHICH, PDCCH etc.。These data could be for PDSCH's etc.。Processor 420 can process (such as, coding and code element map) data and the information of control respectively to obtain data symbols and to control code element。Processor 420 also can generate (such as, for PSS, SSS and the reference signal different because of cellular cell) reference symbols sn。Launch (TX) multiple-input and multiple-output (MIMO) processor 430 and under applicable circumstances data symbols, control code element and/or reference symbols sn can be performed spatial manipulation (such as, precoding), and output code flow filament can be supplied to manipulator (MOD) 432a to 432t。Each manipulator 432 can process respective output code flow filament (such as, for OFDM etc.) to obtain output sample streams。Each manipulator 432 can process (such as, being converted to simulation, amplification, filtering and up-conversion) this output sample streams further to obtain down link signal。Down link signal from manipulator 432a to 432t can be launched via antenna 434a to 434t respectively。

At UE120 place, antenna 452a to 452r can receive from the down link signal of base station 110 and can provide, to demodulator (DEMOD) 454a to 454r, the signal that receive respectively。Each demodulator 454 can nurse one's health (such as, filtering, amplification, down coversion and digitized) respective signal that receives to obtain input sample。Each demodulator 454 can process input sample (such as, for OFDM etc.) further and receive code element to obtain。MIMO detector 456 can obtain and receive code element from all demodulator 454a to 454r, under applicable circumstances these is received code element and performs MIMO detection, and provides detection code element。Reception processor 458 can process (such as, demodulation, deinterleaving and decoding), and these detect code element, the decoded data being used for UE120 are supplied to data trap 460, and decoded control information is supplied to controller/processor 480。

On uplink, at UE120 place, launch processor 464 and can receive and process (such as, for the PUSCH's) data from data source 462 and (such as, for PUCCH's) the control information carrying out self-controller/processor 480。Processor 464 also can generate the reference symbols sn of reference signal。The code element carrying out spontaneous emission processor 464 in applicable occasion by TXMIMO processor 466 precoding, can be processed (such as, for SC-FDM etc.) by manipulator 454a to 454r, and transmit to base station 110 further。At base station 110 place, uplink signal from UE120 can be received by antenna 434, processed by demodulator 432, detected by MIMO detector 436 under applicable circumstances, and processed further to obtain data decoded, that sent by UE120 and control information by receiving processor 438。Decoded data can be supplied to data trap 439 and decoded control information is supplied to controller/processor 440 by processor 438。Base station 110 (such as, on X2 interface 441) can send message to other base stations。

Controller/processor 440 and 480 can distinguish the operation at direct base station 110 and UE120 place。The processor 440 at base station 110 place and/or other processors and module can perform or instruct the execution of the various processes of technique described herein。Processor 480 and/or other processors at UE120 place and module can also carry out or the execution of the functional block diagram shown in guidance diagram 6A-6B and/or other processes for technology described herein。Memorizer 442 and 482 can be separately stored for data and the program code of base station 110 and UE120。Scheduler 444 schedulable UE carries out the data transmission in downlink and/or up-link。

When UE is activated, UE uses synchronizing signal to search for all available cellular cells。During searching for, except true cellular cell, also detect that the cellular cell of some falsenesses。False cellular cell appears to exist or appear than some contiguous cellular cells closer to UE based on receiving signaling (such as, noise is likely to show as synchronizing signal), but these cellular cells are likely to far or are likely to actually and are absent from。UE should be able to distinguish the cellular cell of these falsenesses。A kind of mode is to confirm that cellular cell is real by decoding PBCH。If PBCH is successfully decoded, it may be assumed that this cellular cell there are in fact。

For synchronizing or plesiochronous LTE network (such as, on certain geographic area), Physical Broadcast Channel (PBCH) signal from adjacent cells can crossover。UE can only decode the strongest cellular cell subsequently or not be the PBCH of the cellular cell being significantly smaller than the strongest cellular cell。

In the deployment of heterogeneous network, in such as wireless network 100, UE is likely in the sight of advantage interference to operate, and in the sight of advantage interference, UE can be observed the height interference from one or more interference eNodeB。Surging interference scenario is likely to be due to affined association and occurs。Such as, in FIG, UE120y is likely near femto eNodeB110y and is likely to have height to receive power femto eNodeB110y。But, UE120y is likely to be due to affined association can not access femto eNodeB110y, and be likely to be connected to (such as, have relatively low receive power) grand eNodeB110c subsequently or be connected to (such as, be also have relatively low receive power) femto eNodeB110z。UE120y is likely to observe that the height from femto eNodeB110y disturbs and also is likely on uplink eNodeB110y be caused highly interference subsequently on the uplink。

In these heterogeneous network situations, UE is likely to the PBCH needing to decode the cellular cell being significantly smaller than the strongest cellular cell。Should in example, PBCH interference cancellation (IC) can overcome decoding restriction。

PBCH can transmit in subframe 0, or every 10 subframes transmit once。In one example, the payload of PBCH is constant in 40ms and can change outside this time interval。PBCH payload comprises the information of the such as quantity of Physical Hybrid ARQ Indicator channel (PHICH) group, the quantity of transmitting antenna, system bandwidth etc。Those skilled in the art are it is to be appreciated that this payload of PBCH is not limited to above-mentioned example。

In one example, PBCH interference cancellation operates the list including identifying the cellular cell will attempt PBCH decoding concurrently for it。Cellular cell list can be the list of timing hypothesis, cellular cell ID and/or frequency hypotheses。PBCH decoding will use four PBCH burst (also referred to as redundancy versions (RV))。But, the PBCH of other amounts can be used without affecting the scope of the present disclosure or spirit。The PBCH of the cellular cell being decoded out can be eliminated and eliminate after signal can be used for the PBCH of other cellular cells in decoding list。

The quantity of the cellular cell attempting PBCH decoding and cancellation concurrently for it can be restricted because of the hardware of UE。Such as, UE can only store every time and decode the PBCH of four cellular cells because of hardware limitation。Certainly, other UE hardware configuration are likely to allow to store less or more cellular cell simultaneously。Such as, UE can have limited memorizer but possibility log-likelihood ratio (LLR)/channel estimating that must store the cellular cell being just decoded in a parallel fashion etc. be likely to therefore every time only process the cellular cell of some quantity。

In some designs, iteration can be adopted to eliminate。Such as, if two cellular cells of decoding, then from receiving sampling, first UE can estimate the signal of first cellular cell and eliminate it。UE uses subsequently and estimates the signal corresponding to the second decoded cellular cell through cancellation sampling and eliminate it to obtain sampling through cancellation of renewal。Then the estimation signal of the first decoded cellular cell is added back this through eliminating sampling and reappraising the first cell signals by UE。The first cell signals reappraised is likely to more accurate than previous estimation, because new estimation comes from the sampling of the signal not from the second decoded cellular cell。

One side offer one is for decoding the way than hardware permission (allowing four cellular cells) more cellular cell the hardware limitation overcoming UE。This way overcoming receiver hardware limitation includes attempting top n (such as, N=4) the strongest cellular cell in decoding four of PBCH burst。In this example, N is equal to 4, and decodes this four cellular cells the strongest。Skilled artisans will appreciate that, based on hardware configuration, the cellular cell of other amounts of decodable code and the burst of varying number can be used。About lower M (such as, M=4) cellular cell (or about remaining cellular cell) to repeating this process through cancellation sampling until attempting all cellular cells are decoded at least one times。In this way, UE can identify true and false cellular cell based on PBCH decoding。In one designs, once UE starts to decode the cellular cell in new subset, UE is likely to just no longer store any channel estimating/LLR of cellular cell in previous subset, and in this case, iteration eliminates the cellular cell that can be limited at same subsets。In alternate design, UE can continue to store the channel estimating/LLR of the reconstruction signal from the cellular cell with the PBCH being successfully decoded and eliminating, but correspondingly, UE can limit the quantity of its cellular cell attempting decoding in next subset。

Such as, Fig. 5 A and 5B has explained orally the PBCH in decoding network, and wherein UE identifies 12 cellular cells (such as, cellular cell 0-2,4-12)。In the example of Fig. 5 A, UE receives the signal including four PBCH bursts。This signal corresponds to predetermined amount of time, for instance, 40ms。The receiving PBCH data and can be stored in UE memorizer (such as, the memorizer 482 of Fig. 4) of cellular cell。Not analyzing all 12 cellular cells at once, UE can the signal of four cellular cells of a parallel parsing。Analyze and occur based on the signal observed during 40ms。Therefore, cellular cell is divided subset, and wherein each subset includes four cellular cells。In this example, first subset includes cellular cell 0,4,5,6。Second subset includes cellular cell 1,7,8 and 9。3rd subset includes cellular cell 2,10,11 and 12。UE is by four PBCH burst storages in its memory。UE attempts first cellular cell subset (such as, cellular cell 0,4,5 and 6) of decoding。In one example, cellular cell 0 is successfully decoded, and cellular cell 4,5 and 6 is not decoded out, because they are false cellular cells。The data of cellular cell 0 eliminate in the signal of storage subsequently from UE memorizer。Subsequently next cellular cell subset (such as, cellular cell 1,7,8 and 9) is attempted decoding。In one example, cellular cell 1 is decoded。After decoding cellular cell 1, the signal that UE stores from memorizer eliminates the information of cellular cell 1。Subsequently next cellular cell subset (such as, cellular cell 2,10,11 and 12) is attempted decoding。Continue this process until having attempted all cellular cells in all subsets are decoded。

In this example, in the first design, it does not have adopt iteration to eliminate。In the second designs, after attempting decoding cellular community 0,4,5,6 and decoding cellular cell 0, except, except eliminating sampling, UE also stores the data relevant with cellular cell 0。UE subsequently attempt to the cellular cell 1 in next burst of parallel decoding, 7,8(when hardware has the restriction of four cellular cells, three new cellular cell+cellular cells 0)。Once decode cellular cell 1, UE to have sufficient information to perform the iteration cancellation of cellular cell 0 and cellular cell 1。In some designs, if the cellular cell in relatively low subset is decoded and eliminates, UE can retry the cellular cell not decoding out decoded in higher subset。Eliminate benefit to obtain iteration after the cellular cell in eliminating relatively low subset and/or attempt decoding the cellular cell in higher subset, if two cellular cells decoded in different subset, UE can be placed in the first subset by all cellular cells being successfully decoded by PBCH and restart PBCH decoding。But iteration eliminates will be limited at number the cellular cell determined by hardware capabilities。

In the example of four cell identification selected above, the subset with four cellular cells is analyzed these cellular cells。It is stored in buffer with these four cellular cell ID burst being associated, and analyzes these bursts about following four cellular cell ID subsequently。This process all are carried out based on the signal observed (that is, in this example for 40ms) during same time period。

On the other hand, the second way for decoding the PBCH of multiple cellular cell includes receiving extra burst for analyzed each cellular cell subset。That is, analyze and can occur on the coherent time period。In one example, it is possible to 40ms increment analyzes burst (because PBCH is constant for 40ms, with four the new bursts of every 40ms Incremental receipt)。

With reference to Fig. 5 B, at first 40ms, receive four PBCH bursts。In this example, cellular cell 0,1,2 is real cellular cell, and remaining is false。Furthermore, it is assumed that cellular cell 1 only just can be decoded after eliminating cellular cell 0, and cellular cell 2 only just can be decoded after eliminating cellular cell 0 and 1。UE attempts 12 cellular cells of decoding (from cellular cell 0,4,5,6, once four cellular cells of decoding) based on these bursts。The decoding of four cellular cells is attempted being called a decoder stage。In one example, cellular cell 0 is successfully decoded。Then, in the next 40ms time period, receive fresh sampling (such as, burst) and attempt cellular cell 0,1,7 and 8 is decoded。Resolve the cell identification of cellular cell 0,1,7 and 8 subsequently。Cellular cell 0 is decoded and the channel information of cellular cell 0 is stored in UE memorizer。Then, eliminate the information of cellular cell 0, and cellular cell 1 can be decoded subsequently。Because cellular cell 0,1,7 and 8 is in same subset, the information of cellular cell 0 and 1 can be iterated cancellation。Subsequently, cellular cell 0,1,9,2 is analyzed in the burst during the next 40ms time period。Present cellular cell 0,1 and 2 can be decoded。In this example, if fixed subset is { 0,4,5,6}, { 1,7,8,9} and { 2,10,11,12}, then cellular cell 1 and cellular cell 2 can not be decoded out。Therefore, include from the PBCH of the early decoding level cellular cell being confirmed being useful in new decoder stage。Have in a kind of employing in the design of multiple PBCH decoder stage of cellular cell circulation, in ensuing PBCH decoder stage, include the PBCH found in previously decoder stage and be confirmed all cellular cells and all the other cellular cells of UE searching loop。In another kind designs, the subset of the cellular cell being confirmed of the PBCH from early decoding level is only included in ensuing decoder stage by UE。

Use to reduce memorizer further, only the current burst of storage, but not all four burst during the 40ms cycle。The cancellation of cellular cell subsequently only be successfully decoded in the burst received after this cellular cell occur。That is, the burst application cellular cell received after decoding is eliminated。If storing all bursts but not the only current burst of storage, then process and be likely to return first burst, from all bursts during the 40ms cycle, eliminate this cellular cell subsequently。In another configuration, only on stored PBCH burst subset, perform cancellation。This kind of configuration can reduce complexity。

In another arrangement, a burst before storage decoding。In this configuration, will apply to eliminate to previously burst and burst subsequently。Can be randomly or based on the burst that the characteristic of probability etc. that instruction is successfully decoded selects to store, rather than store this and previously happened suddenly。The burst of storage can be have the large number of PBCH burst eliminated compared with other bursts。

For example it is assumed that UE is just in decoding cellular community 0,1,2,3, wherein cellular cell 0 burst 0 in, cellular cell 1 burst 1 in and cellular cell 2 burst 3 in be decoded。UE decodes the cellular cell 0 in burst 0 and eliminates cellular cell 0 in all four happens suddenly (burst 0 to 3)。UE decodes the cellular cell 1 in burst 1 and only eliminates cellular cell 1 in burst 1,2 and 3。UE decodes the cellular cell 2 in burst 3 and only eliminates cellular cell 2 in burst 3。Correspondingly, UE does not store previous burst and recalculates the LLR of the cellular cell not decoded。In other situations, UE stores all bursts and once decode cellular cell 1 in burst 1, then UE returns and eliminates cellular cell 1 from burst 0, and recalculates/update the LLR of non-decoding cellular community 2 and 3。Once decode cellular cell 2 in burst 3, then UE returns to and eliminates from burst 0 to 2 cellular cell 2, and also recalculates/update the LLR of non-decoding cellular community 3 on all four happens suddenly。More burst although consuming more memorizer, and occurs more to recalculate, but better performance can be obtained, because experienced by cancellation。

Receiving in burst in some of PBCH, stronger cellular cell is likely to just transmit data, and receives in burst at other, and stronger cellular cell is likely not to have is transmitting data。Data may result in the interference of the reference signal frequency modulation to more weak cellular cell。Reference signal frequency modulation is in order to for the PBCH channel estimating demodulated。Data also can cause the interference of the PBCH data to more weak cellular cell when there is timing and frequency shift (FS)。Therefore, storage is more more useful than the burst with the data from stronger cellular cell without the burst of the data from stronger cellular cell。

On the one hand, UE determines the PBCH cellular cell quantity N(being confirmed such as, already by Cyclic Redundancy Check) whether hardware capabilities (such as 4) less than UE。The cellular cell confirmed includes the cellular cell already by Cyclic Redundancy Check。If it is, the various combination of 4-N cellular cell is decoded (N be it has been acknowledged that the quantity of cellular cell) to identify new cellular cell。On the one hand, process starts from the strongest cellular cell unconfirmed and searching loop cellular cell list subsequently。

In one example, when illustrating the confirmation cellular cell more than 4, this process searching loop the 3rd confirms that the most by force below cellular cell, power level are at least in the cellular cell of more than PdB。PdB value can based on one or more because usually determining, such as, but not limited to, application, use, system design, user select or other are various with operation, design or the relevant parameters of situation。Then, (from the strongest cellular cell unconfirmed) is organized into groups in two cellular cells unconfirmed every time, and after eliminating two confirmation cellular cells the strongest, attempt decoding subsequently。If find stronger than the two confirm any one of cellular cell higher newly confirm cellular cell, use new order to restart this process。If really not so, after the whole list of searching loop, identify the strongest 3 and confirm cellular cell and attempt one cellular cell of decoding every time。In one example, PdB criterion can be extra optimization and only when searcher provides non-normalized tolerance with from the tolerance coupling of this searcher。In one example, searcher tolerance can eliminate the tolerance coupling that (RS-IC) provides with reference signal-to-interference。On the other hand, a kind of for overcoming the way of the hardware limitation of UE to include identifying by the maximum quantity M(of considered cellular cell such as, M=8)。

Fig. 6 A has explained orally a kind of method of PBCH for decoding multiple cellular cell。The cellular cell list that Physical Broadcast Channel (PBCH) decodes is generated at frame 610, UE。It is decoding at frame 612, UE and eliminates from the cellular cell subset allocation memorizer of the cellular cell list generated。The information relevant to the cellular cell subset from the list generated is stored in the memorizer distributed during the different time periods at frame 614, UE。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。Carry out, by processing each subset of cellular cell list during the different time periods, the cellular cell list that searching loop generates at frame 616, UE。

Fig. 6 B explains orally the method for PBCH decoding。The new burst that Physical Broadcast Channel (PBCH) is sampled is received at frame 620, UE。From new burst, the PBCH of the cellular cell of each early decoding is eliminated at frame 622, UE。After eliminating, PBCH decoding is attempted based on this new burst at frame 624, UE。Eliminate, from new burst and previously stored burst, the cellular cell being successfully decoded at frame 626, UE。In frame 628, UE storage corresponding to receiving sampling for further process through cancellation PBCH of PBCH burst subset。

In one configures, UE120 be arranged to radio communication and include the device for generating, for assigned unit, for store the device of subset, device for circulating, means for receiving, for eliminating the device of the PBCH of early decoding, for attempting the device of PBCH decoding, for eliminating the device of the cellular cell being successfully decoded and for storing the device through eliminating PBCH sampling。On the one hand, aforementioned means can be arranged to perform controller/processor 480 and the memorizer 482 of the function of aforementioned means。On the other hand, aforementioned means can be arranged to perform the module of the function of aforementioned means or any equipment。

Fig. 7 illustrates the UE120 for UE(such as Fig. 4) the design of device。This device includes the module 710 for generating the cellular cell list that Physical Broadcast Channel (PBCH) decodes。This device also includes for the module 720 for decoding and eliminate the cellular cell subset allocation memorizer from the cellular cell list generated。This device also includes the module 730 for the information relevant to the cellular cell subset from the list generated being stored in the memorizer distributed during the different time periods。The memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset。This device also includes the module 740 for carrying out the cellular cell list that searching loop generates by processing each subset of cellular cell list during the different time periods。Module in Fig. 7 can be processor, electronic device, hardware device, electronic building brick, logic circuit, memorizer, software code, firmware code etc., or its any combination。

Fig. 8 illustrates the UE120 for UE(such as Fig. 4) the design of device。This device includes the module 810 for receiving the new burst that Physical Broadcast Channel (PBCH) is sampled。This device also includes the module 820 of the PBCH of the cellular cell for eliminating each early decoding from new burst。This device also includes the module 830 for attempting PBCH decoding after eliminating based on new burst。This device also includes the module 840 for eliminating the cellular cell being successfully decoded from new burst and previously stored burst。This device also include for store corresponding to receive PBCH burst subset through eliminating the PBCH sampling module 850 for processing further。Module in Fig. 8 can be processor, electronic device, hardware device, electronic building brick, logic circuit, memorizer, software code, firmware code etc., or its any combination。

Those skilled in the art will further appreciate that, can be implemented as electronic hardware, computer software or both combinations in conjunction with described various illustrative boxes disclosed herein, module, circuit and algorithm steps。For clearly explaining orally this interchangeability of hardware and software, above describe various illustrative components, frame, module, circuit and step with its functional form vague generalization。This type of is functional is implemented as hardware or software depends on specifically applying and being added to the design constraint of total system。Technical staff can realize described functional by different way for every kind of application-specific, but this type of realizes decision-making and is not to be read as and causes a departure from the scope of the present disclosure。

Can realize or perform with being designed to perform the general processor of function described herein, digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or other PLDs, discrete door or transistor logic, discrete nextport hardware component NextPort or its any combination in conjunction with the various illustrative boxes of description disclosed herein, module and circuit。General processor can be microprocessor, but in alternative, processor can be the processor of any routine, controller, microcontroller or state machine。Processor is also implemented as the combination of computing equipment, for instance one or more microprocessor that DSP cooperates with DSP core with the combination of microprocessor, multi-microprocessor or any other this type of configuration。

Can be embodied directly in hardware, in the software module performed by processor in conjunction with the method for description disclosed herein or the step of algorithm or implement in combination of the two。Software module can reside in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, depositor, hard disk, removable dish, CD-ROM or any other form。Exemplary storage medium be coupled to processor so that this processor can from this read information and to this storage medium write information。In alternative, storage medium can be integrated into processor。Processor and storage medium can reside in ASIC。ASIC can reside in user terminal。In alternative, processor and storage medium can be resident in the user terminal as discrete assembly。

In one or more exemplary design, described function can realize in hardware, software/firmware or its any combination。If realized in software/firmware, then each function can store on a computer-readable medium as one or more bar instructions or code or mat its transmit。Computer-readable medium includes computer-readable storage medium and communication media, and it includes any medium facilitating computer program to shift to another ground from a ground。Storage medium can be any usable medium that can be accessed by a general purpose or special purpose computer。Exemplarily non-limiting, such computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage apparatus, the expectation program code means that maybe can be used to carry or store instruction or data structure form and any other medium that can be accessed by universal or special computer or universal or special processor。It addition, any connection is also properly termed a computer-readable medium。Such as, transmit from web site, server or other remote source if software is the wireless technology using coaxial cable, fiber optic cables, twisted-pair feeder, numeral subscriber's line (DSL) or such as infrared, radio and microwave etc, then the wireless technology of this coaxial cable, fiber optic cables, twisted-pair feeder, DSL or such as infrared, radio and microwave etc is just included among the definition of medium。As used herein dish (disk) and dish (disc) include compact disc (CD), laser dish, laser disc, digital versatile dish (DVD), floppy disk and blu-ray disc, its mid-game (disk) usually magnetically reproduces data, and dish (disc) reproduces data optically with laser。Combinations of the above also should be included within the scope of computer readable media。

Thering is provided of this disclosure being previously described is for making any person skilled in the art all can make or use the disclosure。Various amendment of this disclosure all will be apparent from for a person skilled in the art, and the generic principles defined herein can be applied to other variants spirit or scope without departing from the disclosure。Thus, the disclosure is not intended to be limited to example described herein and design, but with disclosed herein principle and novel features consistent the widest scope should be awarded。

Claims

1. a method for wireless communications, including:

Generate the cellular cell list that Physical Broadcast Channel (PBCH) decodes；

For decoding and eliminating the cellular cell subset allocation memorizer from the cellular cell list generated；

The information relevant to the cellular cell subset from the list generated is stored in the memorizer distributed during the different time periods, the memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset, wherein decodes each cellular cell subset and includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；And

The cellular cell list that searching loop generates is carried out by processing each subset of cellular cell list during the described different time period。

2. the method for claim 1, it is characterised in that each subset is disjoint。

3. the method for claim 1, it is characterised in that next cellular cell subset includes the cellular cell of the non-decoding cellular community not included in previous subset and the early decoding from previous subset。

4. the method for claim 1, it is characterised in that the PBCH of each cellular cell subset decodes based on the different sets receiving sampling。

5. the method for claim 1, it is characterised in that the PBCH of each cellular cell subset decodes based on the subset receiving sampling decoded of the PBCH for previous cellular cell subset。

6. a method for wireless communications, including:

Receive the new burst that Physical Broadcast Channel (PBCH) is sampled；

The PBCH of the cellular cell of each early decoding is eliminated from described new burst；

Attempting PBCH decoding based on described new burst after eliminating, wherein said PBCH decoding includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；

Eliminate, from described new burst and previously stored burst, the cellular cell being successfully decoded；And

Store corresponding to receiving sampling for further process through cancellation PBCH of PBCH burst subset。

7. method as claimed in claim 6, it is characterised in that only perform described cancellation on stored PBCH burst subset。

8. method as claimed in claim 6, it is characterised in that be additionally included in after being successfully decoded and eliminate cellular cell and reattempt to decoding and update the log-likelihood ratio (LLR) of non-decoding cellular community。

9. method as claimed in claim 6, it is characterised in that select the burst of storage based on the following: random；Based on whether interference cellular cell transmits；Quantity based on the PBCH cellular cell being eliminated in this burst；Or based on can the hardware limitation of quantity of stored burst。

10. a device for radio communication, including:

Memorizer；And

Coupleding at least one processor of described memorizer, at least one processor described is configured that

11. device as claimed in claim 10, it is characterised in that each subset is disjoint。

12. device as claimed in claim 10, it is characterised in that next cellular cell subset includes the cellular cell of the non-decoding cellular community not included in previous subset and the early decoding from previous subset。

13. device as claimed in claim 10, it is characterised in that the PBCH of each cellular cell subset decodes based on the different sets receiving sampling。

14. device as claimed in claim 10, it is characterised in that the PBCH of each cellular cell subset decodes based on the subset receiving sampling decoded of the PBCH for previous cellular cell subset。

15. a device for radio communication, including:

Memorizer；And

Receive the new burst that Physical Broadcast Channel (PBCH) is sampled；

16. device as claimed in claim 15, it is characterised in that at least one processor described is further configured to only perform described cancellation on stored PBCH burst subset。

17. device as claimed in claim 15, it is characterised in that at least one processor described is further configured to after being successfully decoded and eliminating cellular cell reattempt to decoding and update the log-likelihood ratio (LLR) of non-decoding cellular community。

18. device as claimed in claim 15, it is characterised in that at least one processor described is further configured to select stored burst based on the following: random；Based on whether interference cellular cell is transmitted；Quantity based on the PBCH cellular cell being eliminated in this burst；Or based on can the hardware limitation of quantity of stored burst。

19. for a device for the radio communication in wireless network, including:

For generating the circuit of the cellular cell list that Physical Broadcast Channel (PBCH) decodes；

For the circuit for decoding and eliminate the cellular cell subset allocation memorizer from the cellular cell list generated；

For the information relevant to the cellular cell subset from the list generated being stored in the circuit in the memorizer distributed during the different time periods, the memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset, wherein decodes each cellular cell subset and includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；And

For carrying out the circuit of the cellular cell list that searching loop generates by processing each subset of cellular cell list during the described different time period。

20. for a device for the radio communication in wireless network, including:

For receiving the circuit of the new burst that Physical Broadcast Channel (PBCH) is sampled；

For eliminating the circuit of the PBCH of the cellular cell of each early decoding from described new burst；

For attempting the circuit of PBCH decoding after eliminating based on described new burst, wherein said PBCH decoding includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；

For eliminating the circuit of the cellular cell being successfully decoded from described new burst and previously stored burst；And

For store corresponding to receive PBCH burst subset through eliminating the PBCH sampling circuit for processing further。

21. for an equipment for radio communication, including:

For generating the device of the cellular cell list that Physical Broadcast Channel (PBCH) decodes；

For the device for decoding and eliminate the cellular cell subset allocation memorizer from the cellular cell list generated；

For the information relevant to the cellular cell subset from the list generated being stored in the device in the memorizer distributed during the different time periods, the memorizer distributed is enough to attempt decoding each cellular cell subset in each time period and eliminate decoded cellular cell in each subset, wherein decodes each cellular cell subset and includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；And

For carrying out the device of the cellular cell list that searching loop generates by processing each subset of cellular cell list during the described different time period。

22. for an equipment for radio communication, including:

For receiving the device of the new burst that Physical Broadcast Channel (PBCH) is sampled；

For eliminating the device of the PBCH of the cellular cell of each early decoding from described new burst；

For attempting the device of PBCH decoding after eliminating based on described new burst, wherein said PBCH decoding includes decoding PBCH to be made a distinction in false cellular cell and real cellular cell；

For eliminating the device of the cellular cell being successfully decoded from described new burst and previously stored burst；And

For store corresponding to receive PBCH burst subset through eliminating the PBCH sampling device for processing further。